Agent2Agent Protocol
Last Updated on: Feb 20, 2026
Agent2Agent Protocol
0
0Reviews
5Views
1Visits
AI Agents
AI Workflow Management
AI Team Collaboration
AI Communication Assistant
AI Task Management
AI Project Management
AI Developer Tools
AI API Design
AI Knowledge Graph
AI Knowledge Management
AI Knowledge Base
AI DevOps Assistant
AI Developer Docs
AI Productivity Tools
AI Assistant
AI Scheduling
What is Agent2Agent Protocol?
A2A, or Agent2Agent Protocol, is an open standard launched by Google to enable secure, interoperable communication between AI agents built by different vendors or frameworks, fostering multi-agent collaboration across enterprise systems. It allows client agents to discover remote agents via standardized "Agent Cards" detailing capabilities, authenticate securely using OpenAPI schemes like API keys or OAuth, negotiate tasks, and coordinate actions with support for long-running async operations, streaming updates via SSE, push notifications to webhooks, and state transitions like submitted-to-working-to-completed. Designed to complement protocols like Anthropic's MCP, A2A uses HTTP/JSON-RPC for vendor-neutral integration, ensuring agents handle complex workflows such as hiring processes or supply chain tasks without silos. Backed by over 50 partners including Atlassian, Salesforce, SAP, ServiceNow, LangChain, and consultancies like Accenture and Deloitte.
Who can use Agent2Agent Protocol & how?
  • Enterprise Developers: Integrate agents across clouds for automated workflows.
  • AI Platform Builders: Standardize inter-agent comms in multi-vendor setups.
  • Business Automators: Coordinate tasks like hiring or supply chain via agent teams.
  • Consultants & Integrators: Deploy scalable ecosystems with partners like Accenture.
  • Product Teams: Enhance apps with collaborative agents from Salesforce or SAP.

How to Use A2A Protocol?
  • Publish Agent Cards: Expose capabilities via ORD discovery for remote access.
  • Implement Client-Server: Client discovers, authenticates, submits tasks to remote agents.
  • Handle Tasks Async: Support streaming SSE, webhooks for updates and state changes.
  • Integrate & Test: Use spec samples, contribute via GitHub for your framework.
What's so unique or special about Agent2Agent Protocol?
  • Dynamic Discovery: Agent Cards enable runtime capability matching across vendors.
  • Secure Async Comm: OAuth, streaming, push for long tasks without polling.
  • Vendor-Neutral: Works with any framework, complements MCP for tools.
  • Enterprise-Ready: Privacy-preserving, observable, scalable for production.
  • Open Ecosystem: 50+ partners from Atlassian to Wipro building support.
Things We Like
  • Breaks silos for true multi-agent enterprise automation.
  • Secure, standard auth fits existing OpenAPI setups.
  • Async handling suits complex, human-in-loop workflows.
  • Open-source invites community contributions fast.
Things We Don't Like
  • Early spec needs more mature implementations.
  • Requires agent builders to adopt for full value.
  • Complex for simple single-agent use cases.
  • Discovery overhead in massive ecosystems.
Photos & Videos
Screenshot 1
Pricing
Paid

Custom

Pricing information is not directly provided.

ATB Embeds
Reviews

Proud of the love you're getting? Show off your AI Toolbook reviews—then invite more fans to share the love and build your credibility.

Product Promotion

Add an AI Toolbook badge to your site—an easy way to drive followers, showcase updates, and collect reviews. It's like a mini 24/7 billboard for your AI.

Reviews

0 out of 5

Rating Distribution

5 star
0
4 star
0
3 star
0
2 star
0
1 star
0

Average score

Ease of use
0.0
Value for money
0.0
Functionality
0.0
Performance
0.0
Innovation
0.0

Popular Mention

FAQs

A2A is Google's open protocol for AI agents to discover, authenticate, and collaborate on tasks across vendors.
Agents publish "Agent Cards" via ORD for clients to find matching capabilities.
OpenAPI schemes like API keys, OAuth 2.0, OpenID Connect for enterprise auth.
Yes, uses SSE streaming, webhooks for push updates on long-running tasks.
Over 50 including Atlassian, Salesforce, SAP, LangChain, Accenture, Deloitte.

Similar AI Tools

Maxim AI
logo

Maxim AI

0
0
14
0

Maxim AI is a comprehensive AI evaluation and observability platform that enables AI and data teams to build, test, and monitor intelligent agents reliably. It streamlines the development lifecycle by integrating prompt engineering tools, simulation-driven testing, traceable audits, and performance dashboards. Teams can ship AI products faster—up to 5× quicker—by applying traditional software best practices to generative AI workflows.

Maxim AI
logo

Maxim AI

0
0
14
0

Maxim AI is a comprehensive AI evaluation and observability platform that enables AI and data teams to build, test, and monitor intelligent agents reliably. It streamlines the development lifecycle by integrating prompt engineering tools, simulation-driven testing, traceable audits, and performance dashboards. Teams can ship AI products faster—up to 5× quicker—by applying traditional software best practices to generative AI workflows.

Maxim AI
logo

Maxim AI

0
0
14
0

Maxim AI is a comprehensive AI evaluation and observability platform that enables AI and data teams to build, test, and monitor intelligent agents reliably. It streamlines the development lifecycle by integrating prompt engineering tools, simulation-driven testing, traceable audits, and performance dashboards. Teams can ship AI products faster—up to 5× quicker—by applying traditional software best practices to generative AI workflows.

TEAMMATES.AI
logo

TEAMMATES.AI

0
0
12
1

Teammates.ai is a revolutionary platform that provides businesses with autonomous AI teammates designed to handle entire business functions, working collaboratively with humans to boost productivity and efficiency. These AI agents can be trained to perform a wide range of tasks, from customer service and sales to lead generation and interviewing. By integrating with over 30 popular business tools, Teammates.ai allows companies to automate repetitive tasks and focus human talent on more strategic and creative work.

TEAMMATES.AI
logo

TEAMMATES.AI

0
0
12
1

Teammates.ai is a revolutionary platform that provides businesses with autonomous AI teammates designed to handle entire business functions, working collaboratively with humans to boost productivity and efficiency. These AI agents can be trained to perform a wide range of tasks, from customer service and sales to lead generation and interviewing. By integrating with over 30 popular business tools, Teammates.ai allows companies to automate repetitive tasks and focus human talent on more strategic and creative work.

TEAMMATES.AI
logo

TEAMMATES.AI

0
0
12
1

Teammates.ai is a revolutionary platform that provides businesses with autonomous AI teammates designed to handle entire business functions, working collaboratively with humans to boost productivity and efficiency. These AI agents can be trained to perform a wide range of tasks, from customer service and sales to lead generation and interviewing. By integrating with over 30 popular business tools, Teammates.ai allows companies to automate repetitive tasks and focus human talent on more strategic and creative work.

Sim Studio

Sim Studio

0
0
50
0

Sim.AI is a cloud-native platform designed to streamline the development and deployment of AI agents. It offers a user-friendly, open-source environment that allows developers to create, connect, and automate workflows effortlessly. With seamless integrations and no-code setup, Sim.AI empowers teams to enhance productivity and innovation.

Sim Studio

Sim Studio

0
0
50
0

Sim.AI is a cloud-native platform designed to streamline the development and deployment of AI agents. It offers a user-friendly, open-source environment that allows developers to create, connect, and automate workflows effortlessly. With seamless integrations and no-code setup, Sim.AI empowers teams to enhance productivity and innovation.

Sim Studio

Sim Studio

0
0
50
0

Sim.AI is a cloud-native platform designed to streamline the development and deployment of AI agents. It offers a user-friendly, open-source environment that allows developers to create, connect, and automate workflows effortlessly. With seamless integrations and no-code setup, Sim.AI empowers teams to enhance productivity and innovation.

Abacus.AI
logo

Abacus.AI

0
0
20
1

ChatLLM Teams by Abacus.AI is an all‑in‑one AI assistant that unifies access to top LLMs, image and video generators, and powerful agentic tools in a single workspace. It includes DeepAgent for complex, multi‑step tasks, code execution with an editor, document/chat with files, web search, TTS, and slide/doc generation. Users can build custom chatbots, set up AI workflows, generate images and videos from multiple models, and organize work with projects across desktop and mobile apps. The platform is OpenAI‑style in usability but adds operator features for running tasks on a computer, plus DeepAgent Desktop and AppLLM for building and hosting small apps.

Abacus.AI
logo

Abacus.AI

0
0
20
1

ChatLLM Teams by Abacus.AI is an all‑in‑one AI assistant that unifies access to top LLMs, image and video generators, and powerful agentic tools in a single workspace. It includes DeepAgent for complex, multi‑step tasks, code execution with an editor, document/chat with files, web search, TTS, and slide/doc generation. Users can build custom chatbots, set up AI workflows, generate images and videos from multiple models, and organize work with projects across desktop and mobile apps. The platform is OpenAI‑style in usability but adds operator features for running tasks on a computer, plus DeepAgent Desktop and AppLLM for building and hosting small apps.

Abacus.AI
logo

Abacus.AI

0
0
20
1

ChatLLM Teams by Abacus.AI is an all‑in‑one AI assistant that unifies access to top LLMs, image and video generators, and powerful agentic tools in a single workspace. It includes DeepAgent for complex, multi‑step tasks, code execution with an editor, document/chat with files, web search, TTS, and slide/doc generation. Users can build custom chatbots, set up AI workflows, generate images and videos from multiple models, and organize work with projects across desktop and mobile apps. The platform is OpenAI‑style in usability but adds operator features for running tasks on a computer, plus DeepAgent Desktop and AppLLM for building and hosting small apps.

Chatbase
logo

Chatbase

0
0
25
1

Chatbase is a customer support AI platform for building, deploying, and improving agents that resolve real issues across web, chat apps, and internal systems. Teams ground an agent on business data, define safe actions it can take, and connect tools like CRMs or order systems so it can fetch details and perform tasks securely. The platform emphasizes simplicity, security, and guardrails, including SOC 2 Type II and GDPR compliance. Agents handle complex queries, escalate to humans when needed, and learn over time through analytics and iteration. With multilingual support and cross‑channel deployment, Chatbase delivers fast resolutions while improving operational outcomes.

Chatbase
logo

Chatbase

0
0
25
1

Chatbase is a customer support AI platform for building, deploying, and improving agents that resolve real issues across web, chat apps, and internal systems. Teams ground an agent on business data, define safe actions it can take, and connect tools like CRMs or order systems so it can fetch details and perform tasks securely. The platform emphasizes simplicity, security, and guardrails, including SOC 2 Type II and GDPR compliance. Agents handle complex queries, escalate to humans when needed, and learn over time through analytics and iteration. With multilingual support and cross‑channel deployment, Chatbase delivers fast resolutions while improving operational outcomes.

Chatbase
logo

Chatbase

0
0
25
1

Chatbase is a customer support AI platform for building, deploying, and improving agents that resolve real issues across web, chat apps, and internal systems. Teams ground an agent on business data, define safe actions it can take, and connect tools like CRMs or order systems so it can fetch details and perform tasks securely. The platform emphasizes simplicity, security, and guardrails, including SOC 2 Type II and GDPR compliance. Agents handle complex queries, escalate to humans when needed, and learn over time through analytics and iteration. With multilingual support and cross‑channel deployment, Chatbase delivers fast resolutions while improving operational outcomes.

Double
logo

Double

0
0
29
1

Double is a remote staffing platform that connects businesses with dedicated virtual assistants specialized in operations, customer support, and administrative tasks. The service pairs companies with skilled professionals who act as an extension of their team, handling day-to-day operational work to save time and increase productivity. Double emphasizes personalized matching, ongoing support, and integration into clients’ workflows to ensure seamless collaboration. Their virtual assistants can manage emails, calendar scheduling, customer interactions, and various administrative duties, enabling business leaders to focus on higher-value activities without hiring full-time staff.

Double
logo

Double

0
0
29
1

Double is a remote staffing platform that connects businesses with dedicated virtual assistants specialized in operations, customer support, and administrative tasks. The service pairs companies with skilled professionals who act as an extension of their team, handling day-to-day operational work to save time and increase productivity. Double emphasizes personalized matching, ongoing support, and integration into clients’ workflows to ensure seamless collaboration. Their virtual assistants can manage emails, calendar scheduling, customer interactions, and various administrative duties, enabling business leaders to focus on higher-value activities without hiring full-time staff.

Double
logo

Double

0
0
29
1

Double is a remote staffing platform that connects businesses with dedicated virtual assistants specialized in operations, customer support, and administrative tasks. The service pairs companies with skilled professionals who act as an extension of their team, handling day-to-day operational work to save time and increase productivity. Double emphasizes personalized matching, ongoing support, and integration into clients’ workflows to ensure seamless collaboration. Their virtual assistants can manage emails, calendar scheduling, customer interactions, and various administrative duties, enabling business leaders to focus on higher-value activities without hiring full-time staff.

Cresta
logo

Cresta

0
0
19
0

Cresta is an enterprise-grade generative AI platform built for contact centres, designed to combine human and AI agents in one unified workspace. It helps organisations analyse every customer conversation, extract insights, guide agents in real time, automate workflows and improve outcomes such as first-call resolution, conversion, and agent performance. The platform features include custom models trained on an organisation’s own data, low-latency real-time transcription and inference, no-code tools for business users to deploy and refine AI models, and a strong focus on combining quality assurance, coaching, automation and conversational intelligence. Recent funding has boosted the company’s growth and the product has been adopted by major enterprises to optimise service, sales and retention operations.

Cresta
logo

Cresta

0
0
19
0

Cresta is an enterprise-grade generative AI platform built for contact centres, designed to combine human and AI agents in one unified workspace. It helps organisations analyse every customer conversation, extract insights, guide agents in real time, automate workflows and improve outcomes such as first-call resolution, conversion, and agent performance. The platform features include custom models trained on an organisation’s own data, low-latency real-time transcription and inference, no-code tools for business users to deploy and refine AI models, and a strong focus on combining quality assurance, coaching, automation and conversational intelligence. Recent funding has boosted the company’s growth and the product has been adopted by major enterprises to optimise service, sales and retention operations.

Cresta
logo

Cresta

0
0
19
0

Cresta is an enterprise-grade generative AI platform built for contact centres, designed to combine human and AI agents in one unified workspace. It helps organisations analyse every customer conversation, extract insights, guide agents in real time, automate workflows and improve outcomes such as first-call resolution, conversion, and agent performance. The platform features include custom models trained on an organisation’s own data, low-latency real-time transcription and inference, no-code tools for business users to deploy and refine AI models, and a strong focus on combining quality assurance, coaching, automation and conversational intelligence. Recent funding has boosted the company’s growth and the product has been adopted by major enterprises to optimise service, sales and retention operations.

My Agents

My Agents

0
0
15
0

myAgents AI is a no-code enterprise platform that allows organisations to create, deploy and manage branded AI assistants (“agent replicas”) that embed corporate playbooks, workflows and guidance into day-to-day employee interactions. The platform is aimed at boosting productivity, engagement and performance by turning internal or partner best-practices into scalable AI agents that support staff with planning, follow-up, coaching, and task completion. Key features include adaptive planning agents that assign and track goals and tasks, human-in-the-loop governance for sensitive workflows, identity and access controls with enterprise-grade security (GDPR readiness, ISO 27001-certified cloud, SOC 2 control alignment), and the capability to scale consistent messaging across a workforce.

My Agents

My Agents

0
0
15
0

myAgents AI is a no-code enterprise platform that allows organisations to create, deploy and manage branded AI assistants (“agent replicas”) that embed corporate playbooks, workflows and guidance into day-to-day employee interactions. The platform is aimed at boosting productivity, engagement and performance by turning internal or partner best-practices into scalable AI agents that support staff with planning, follow-up, coaching, and task completion. Key features include adaptive planning agents that assign and track goals and tasks, human-in-the-loop governance for sensitive workflows, identity and access controls with enterprise-grade security (GDPR readiness, ISO 27001-certified cloud, SOC 2 control alignment), and the capability to scale consistent messaging across a workforce.

My Agents

My Agents

0
0
15
0

myAgents AI is a no-code enterprise platform that allows organisations to create, deploy and manage branded AI assistants (“agent replicas”) that embed corporate playbooks, workflows and guidance into day-to-day employee interactions. The platform is aimed at boosting productivity, engagement and performance by turning internal or partner best-practices into scalable AI agents that support staff with planning, follow-up, coaching, and task completion. Key features include adaptive planning agents that assign and track goals and tasks, human-in-the-loop governance for sensitive workflows, identity and access controls with enterprise-grade security (GDPR readiness, ISO 27001-certified cloud, SOC 2 control alignment), and the capability to scale consistent messaging across a workforce.

Fetch.ai
logo

Fetch.ai

0
0
26
1

Fetch.ai is a decentralized AI platform built to power the emerging agentic economy by enabling autonomous AI agents to interact, transact, and collaborate across digital and real-world environments. The platform combines blockchain technology with advanced machine learning to create a network where millions of AI agents operate independently yet connect seamlessly to solve complex tasks such as supply chain automation, personalized services, and data sharing. Fetch.ai offers a complete technology stack, including personal AI assistants, developer tools, and business automation solutions, designed for real-world impact. Its open ecosystem supports flexibility, privacy, and interoperability, empowering users and enterprises to build, discover, and transact through intelligent, autonomous AI agents.

Fetch.ai
logo

Fetch.ai

0
0
26
1

Fetch.ai is a decentralized AI platform built to power the emerging agentic economy by enabling autonomous AI agents to interact, transact, and collaborate across digital and real-world environments. The platform combines blockchain technology with advanced machine learning to create a network where millions of AI agents operate independently yet connect seamlessly to solve complex tasks such as supply chain automation, personalized services, and data sharing. Fetch.ai offers a complete technology stack, including personal AI assistants, developer tools, and business automation solutions, designed for real-world impact. Its open ecosystem supports flexibility, privacy, and interoperability, empowering users and enterprises to build, discover, and transact through intelligent, autonomous AI agents.

Fetch.ai
logo

Fetch.ai

0
0
26
1

Fetch.ai is a decentralized AI platform built to power the emerging agentic economy by enabling autonomous AI agents to interact, transact, and collaborate across digital and real-world environments. The platform combines blockchain technology with advanced machine learning to create a network where millions of AI agents operate independently yet connect seamlessly to solve complex tasks such as supply chain automation, personalized services, and data sharing. Fetch.ai offers a complete technology stack, including personal AI assistants, developer tools, and business automation solutions, designed for real-world impact. Its open ecosystem supports flexibility, privacy, and interoperability, empowering users and enterprises to build, discover, and transact through intelligent, autonomous AI agents.

Private AI
logo

Private AI

0
0
17
2

webAI Private AI is a secure AI solution designed to enable enterprises to train, evaluate, and deploy AI models entirely on their own infrastructure, ensuring maximum data privacy and compliance with regulatory requirements. It addresses challenges faced by regulated industries such as healthcare, finance, and defense, where data sovereignty and compliance are critical. By eliminating the need to move raw data offsite, webAI enables federated training and evaluation across multiple sites or organizations with encryption and full auditability at every stage. This approach facilitates collaboration across jurisdictions while respecting strict data sovereignty rules, reducing cloud costs, and accelerating AI adoption in highly regulated environments.

Private AI
logo

Private AI

0
0
17
2

webAI Private AI is a secure AI solution designed to enable enterprises to train, evaluate, and deploy AI models entirely on their own infrastructure, ensuring maximum data privacy and compliance with regulatory requirements. It addresses challenges faced by regulated industries such as healthcare, finance, and defense, where data sovereignty and compliance are critical. By eliminating the need to move raw data offsite, webAI enables federated training and evaluation across multiple sites or organizations with encryption and full auditability at every stage. This approach facilitates collaboration across jurisdictions while respecting strict data sovereignty rules, reducing cloud costs, and accelerating AI adoption in highly regulated environments.

Private AI
logo

Private AI

0
0
17
2

webAI Private AI is a secure AI solution designed to enable enterprises to train, evaluate, and deploy AI models entirely on their own infrastructure, ensuring maximum data privacy and compliance with regulatory requirements. It addresses challenges faced by regulated industries such as healthcare, finance, and defense, where data sovereignty and compliance are critical. By eliminating the need to move raw data offsite, webAI enables federated training and evaluation across multiple sites or organizations with encryption and full auditability at every stage. This approach facilitates collaboration across jurisdictions while respecting strict data sovereignty rules, reducing cloud costs, and accelerating AI adoption in highly regulated environments.

H2Loop
logo

H2Loop

0
0
16
1

H2LooP AI is an enterprise-focused AI platform designed specifically for system software teams working in industries like automotive, electronics, IoT, telecom, avionics, and semiconductors. It integrates seamlessly with existing development toolsets without disrupting workflows. The platform offers fully on-premise deployment and is trained on a company’s proprietary system code, logs, and specifications, ensuring complete data privacy and security. H2LooP AI facilitates co-building, fast prototyping, and research-backed innovation tailored to complex system software development environments.

H2Loop
logo

H2Loop

0
0
16
1

H2LooP AI is an enterprise-focused AI platform designed specifically for system software teams working in industries like automotive, electronics, IoT, telecom, avionics, and semiconductors. It integrates seamlessly with existing development toolsets without disrupting workflows. The platform offers fully on-premise deployment and is trained on a company’s proprietary system code, logs, and specifications, ensuring complete data privacy and security. H2LooP AI facilitates co-building, fast prototyping, and research-backed innovation tailored to complex system software development environments.

H2Loop
logo

H2Loop

0
0
16
1

H2LooP AI is an enterprise-focused AI platform designed specifically for system software teams working in industries like automotive, electronics, IoT, telecom, avionics, and semiconductors. It integrates seamlessly with existing development toolsets without disrupting workflows. The platform offers fully on-premise deployment and is trained on a company’s proprietary system code, logs, and specifications, ensuring complete data privacy and security. H2LooP AI facilitates co-building, fast prototyping, and research-backed innovation tailored to complex system software development environments.

Raccoon AI
logo

Raccoon AI

0
0
7
1

Raccoon AI is an agent-run computer platform that automates workflows by turning natural language into actions across your tools. It handles spreadsheets to dashboards, charts, forecasts, slides, code, and deep research in specialized modes. Integrates Gmail, Calendar, Drive, Sheets, GitHub for context-aware tasks like channel analysis or board presentations. See live filesystem, agents building files in real-time. From content strategy workbooks to AI web apps, it executes end-to-end. Lets work do itself, boosting productivity without manual switching.

Raccoon AI
logo

Raccoon AI

0
0
7
1

Raccoon AI is an agent-run computer platform that automates workflows by turning natural language into actions across your tools. It handles spreadsheets to dashboards, charts, forecasts, slides, code, and deep research in specialized modes. Integrates Gmail, Calendar, Drive, Sheets, GitHub for context-aware tasks like channel analysis or board presentations. See live filesystem, agents building files in real-time. From content strategy workbooks to AI web apps, it executes end-to-end. Lets work do itself, boosting productivity without manual switching.

Raccoon AI
logo

Raccoon AI

0
0
7
1

Raccoon AI is an agent-run computer platform that automates workflows by turning natural language into actions across your tools. It handles spreadsheets to dashboards, charts, forecasts, slides, code, and deep research in specialized modes. Integrates Gmail, Calendar, Drive, Sheets, GitHub for context-aware tasks like channel analysis or board presentations. See live filesystem, agents building files in real-time. From content strategy workbooks to AI web apps, it executes end-to-end. Lets work do itself, boosting productivity without manual switching.

Editorial Note

This page was researched and written by the ATB Editorial Team. Our team researches each AI tool by reviewing its official website, testing features, exploring real use cases, and considering user feedback. Every page is fact-checked and regularly updated to ensure the information stays accurate, neutral, and useful for our readers.

If you have any suggestions or questions, email us at hello@aitoolbook.ai